Lars, two historical methods to protect against witchcraft
1. Witch Bottle
WITCH BOTTLE
Witch bottles can be made of glass, pottery or iron. To protect from witchcraft they should be buried close to the front door.
To discover a witch they are placed on a fire.
The bottle represents the witches bladder.
Put bent nails, pins, thorns or any sharp objects in the bottle and add your clients urine. Hair and/or nail clippings can also be added.
Burying the bottle in the garden will cause pain to anyone attempting to place a curse.
If your client is already bewitched then place the bottle on the fire, this will cause the witch intense pain until the spell is lifted.
There are reports of witches dying if the bottle explodes on the fire
2. The Hag Stone
HAG STONE
The Hag Stone is a stone with a hole through it, which is believed to ward off witches and the 'evil eye'.
Putting one in the stable will stop the hag from stealing your horses for a joyride and returning them in the morning exhausted, which was thought to occur often in older times. Even normal stones or pebbles scattered around the entrance to a house has been thought to prevent a witch from entering.
It is also customary for some people to carry these stones around in their pockets as key-fobs or tied to a length of cord and hung around their neck, both to protect themselves against the effects of the evil eye and to generally safeguard their owner's luck.
At night the hag stones should be hung on bed-posts to keep away the demons such as the Night Hag, Nightmare or Succubus who would invisibly seek out their sleeping victims.
Dorset fisherman have also adopted the Hag Stone as a protective charm against malevolent witchcraft, hanging them from the bows of their boats.
These come from the Cunning Folk Grimoire